Air-gun.



PATENTED JUNE 5, i906.

W. R. BENJAMN.

AIR GUN.

AlPLwATIoN FILED AUG.'24,1905.

.. r lter/ UNITED sTAfrEs-PATENT oEEioE. i

- WALTER R. BENJAMm,l or GRANITE ci'ri, iLLiNois.

AIR-GUN,

`7To all whom, t 71mg/ concern,.-

vand extremely simple structure which will maintain air under pressure, will effectively deliver they saine behindy the projectiles, and iscomposed of parts that are elementary in their nature, so that there is little liability of breakage or derangement, though said parts are entirely accessible for the purposes of repair or renewal should it become necessary.

The embodiment of the invention that is considered preferable is illustrated in the accompanying drawings and is described in the following specification. An inspection of the claims hereto appended will clearly indicate, however, that the said invention is not limited to the exact structure herein illustrated, but that the same` is open to numerous changes and modifications.

In the drawings, Figure 1 is a side elevation of the said preferred embodiment. Fig. 2 is a longitudinal sectional View, on an enlargedscale, through a portion of the same. Fig. 3 is a cross-sectional view taken on the line 3 3 of Fig. 2. Fig. 4 is atop plan view of the retaining-cap.

Similar reference-numerals designate corresponding parts in allr the iigures of the drawin s.

gIn the embodiment illustrated a stock 5 is employed, having the usual grip extension 6, which extension is rovided in its upper side with a longitudinali) -disposed curved seat 7.

This seat receives a holding-plate 8, secured 4 in place by screws 9 and having secured thereto by solder or by any other suitable means a cylinder 10, preferably formed of sheet metal and having a artition 11 between its ends, which sub ivides said'cylinder into a reservoir 12 for holding air or Huid under pressure and a pump-barrel 13. A suitable reciprocatory ump-plunger 14 is located in the barrel an is connected to a stem 15, projecting from the .outer end of said barrel and having a handle-knob 16.

i The inner end of the cylinder, and conse- S'peciifcation of Letters Patent.' Application filed Augiisi 24.1905.A serial No. 275,582.

i v vPatented.lluzie 5v, 1906..

quently the inner end ofthe reservoir, is closed by a compressible plug 1T, of rubber or other suitable material, which plug is held in place by a cap 18, threaded upon the cylind er and having spaced rearwardly-projecting ears 419. Located upon the' upper side of the cylinder 10 is a projectile-barrel 20, having the usual front and rear sights 21 and 22 and having communication at its rear end with the interior of the reservoir through a nipple 23, depending within said reservoir, and having an outlet-opening 2-1 therethrough that communicates wit-lim'said barrel. l

Communication between the` pu nip-barrel 11 and the reservoir 12 is; secured through a yielding conduit-stem 25 the outer end of which is suitablyfast-ened in the partition l11 and communicates with the inner end of said pump-barrel The inner end portion of this conduit-stein has a lateral inlet-opening 26, located in opp .ition to the outlet-opening 24 inthe ni pl 23,.said opening`26 being surrounded y a suitable valve-seat 27. 'A valve device, preferably in the form of a ball 28, of rubber or other compressible material, is interposed between vthe inlet and outlet openings, being located in the seat 27 -and normally closing the inlet-o ening. It is maintained in operative or diosed position with respect to said openings by means of the yielding conduit-stem. A valve-stem 29 slidably passes across the inner end of the projectile-barrel and downwardly into the nipple, terminating at its inner end in a head 30, that bears upon the valve, the outer end of the stem projecting above the barrel. A trigger 31, pivoted to and between the ears 19 by meansof a detachable pin 32, has an offset linger 33, the front portion of which is located over and bears upon the outer end of the valve-stem v29. The remaining portion of the trigger comprises a stem 34, passing vdownwardly through an opening 35 in the stock, y'projecting below said stock, and having a finger-piece 36 located within a guard 37 The operationof the gun may be briefly outlined, as follows: VVheirthe'pump-plunger 14 is'reciprocated inthe` vusual manner, air is forced through .the conduit-stem 25 and act- IOO ing againstthe valve 28 willimove thestem Y sufiicientlyfi,toescapej'into they reservoir.

Whensui cient;1 pressures secured in said reservoigaprojectile isfdr'o'pped into lthe end of the:projectile-barrel-iY Thereforewhen the trigger pulled Ythe frontend of the finger 3.3

will be sWung downwardly, ythus pressing upon the valve-stem 29 and opening the outlet', so that air under pressure wi ll be delivered to the prog ectile-blrrel behind the projectile,

,. which Wm tnereoy be expelled with great force romthe barrel. It will be seen that 1 an exceedingly-simple structure, a single 'ballfconstituting a .valve device Whichcontrols both the inlet to and the .outlet from the reservoir., The ltrigger .mechanism is in like manner yexceedingly elementary in its come necessary.

by lunscrevving the cap 16 `and removing the plu-g the valvecan be readily detached, as

Will be apparent.

2o '.construction', opera-tion, and many advantages ofthe herein-described invention vvill' From the foregoing it is thought that the be apparent to those skilled 4in the art'witliout further description, and itwill be understood that various changes in the/size, shape;

proportion, and minor details of' construction may be resorted to Without departing from the spirit or sacriiicinganyof the advantages o f the invention. l

'Having thus described my invention, what v.I claim as new, and desire to secure by Letters Patent, is-

1. In an air-gun., the combination with a projectile-holder, of a reservoir for fluid un- .'der pressure, said reservoir having an inlet and an outlet that .communicates with the projectile-holder, a valve for controlling t-he inlet and outlet7 and means for actuating the valve.

' 2. In an' air-gun, the combination Wit-h a projectile-barrel, of a reservoir for fluid under pressure, said reservoir having an inlet and a separate outlet, the latter communicating with the barrel, a single valve device controlling` both the-inlet and outlet, and means for operating the valve device.

3,. In an air-gun, the combination with a projectile-barrel, of a reservoir for fluid under pressure, said reservoir having an inlet anda sepa-rate outlet, ing With the barrel, `a single valve device controlling both the inlet and outlet, and means for operating the valve device to open the outletand at the saine time hold said valve 1 closed upon t-he inlet.

4.1In an air-gun, the combination with a projectile-barrel, ofa reservoir for fluid under pressure, a pump communicating With the reservoir, said reservoir also having communication With the barrel, a valve device for closing both of said communications, and

`means for operating the valve device.

5. In an air-gun, the combination vvith a projectile-holder, of a reservoir for fluid under pressure, said reservoir having an inlet the latter coinniuiiicatand an outlet that communicates with the projectile-holder, a ball-valve for controlling both the inlet and the outlet, and means for actuating the ball-valve.

,46. In an air-gun, the combination with a projectile-barrel, of laieserivoir for fluid under pressure, said reservoir liavingan inlet and a separate outlet, the latter communicating -with the barrel,` a ball-valve having its opposite portions closingthe inlet and outlet, V and means for operating'tlie valve.

7. ln an air-gun, the combination with a reservoir for fluid under pressure, said reservoir having an open rear end, of a detachable closure for the open end, a projectile-barrt-l having communication with the reservoir, a yielding support located in the reservoir contiguous'to the open end thereof, a valve detachably mounted on the support and controlling the communication with the barrel. said valve being accessible and removable through the open end when the closure is detached, and means for actuating the valve. l S. In an air-gun, the combination with ay reservoir for fluid under pressure, said reservoii having an open rear end, of a detachable closure for said open end, a, projectile-barrel having communication with the reservoir, a valve detachably mounted Within the reservoir and controlling the communication with the barrel, said valve being accessible and removablethrough the open end ivhen the closure is detached, and means for actuating the valve.

, 9. In an air-gun, the combination with a stoclgof a reervoir mounted on the stock and having an open rear end located -above the same, a detachable closure for said rear end, a projectile-barrel having communicati'on with the reservoir, a valve detachably located in the reservoir and controlling said communication, said valve being accessible 'and removable through the open end of the reservoir when the closure is removed, and meansl for operating the valve.

l0. In an air-gun, the combination with a I projectile-barrel, of a reservoir for luid under pressure having communication with the barrel, a yielding stem supported at one end and having a valve-seat' at its other end that the communication,

l l l i l l l is located contiguous to l, a ball-valve loosely and detachably located t in the seat and normally closing said communication, a valve-stem engaging the valve on the side opposite the portion located in the l sea-t, and means for moving the stem longitul dinally to actuate the valve. l, 1l. In an air-gun, the combination with a l reservoir lor fluid under pressure and a prol jectile-barrel cooperating therewith, of means l for permitting the introduction oi` fluid into the reservoir, said means comprising a yielding conduit having communication With the l ieservoir, and a valve controlling such conl uit.

IIO

12. In an air-gun, the combination with a reservoir for iluid under pressure and a pro- ]etile-barrel cooperating therewith, of means for permitting the introductionoflluid into the reservoir, said means comprising a yieldingconduit having an opening communicat- .l

ing with the reservoir, and a valve carried by the yielding conduitl and: normally closing,-

withithe reservoir, a valve-seat surrounding lyielding conduit located in the reservoir and the openin and a valve located in the seat and movabe therefrom to allow the passage of Huid through the conduit into the reservoir.

14. In an air-gun, thecombination with a reservoir Jfor fluid under pressure and a projectile-barrelcoperating therewith, of a tubular stem located inthe reservoir, said stem` being supported at one end and having at its other end an opening surrounded by a valveseat, and a valve located in the seat.

'15. In an air-gun, the combination with a proj ectile-barrel, of a cylinderextending longitudinally along the same, a partition located in the cylinder and subdividing the sameinto an air-reservoir and a pump-barrel, a yielding conduit having one end secured in the lpartition and communicating with the pump-barrel, the' other end being yielding and having anfopening communicating with the reservoir, a valve closing said o ening, and a plunger operating in the umparrel.

16. In an air-gun, the combination with a barrel, of a reservoir coacting therewith, a

f aving communication with said reservoir, a valve carried by the conduit, and means for actuating the valve.

. 17. In an air-gun, the combination with a barrel, of a reservoir coacting therewith, a yielding conduit located in the reservoir and having communication with said reservoir, a

-valve carried bythe conduit, and a pump connected to the conduit.

18. In an air-gun, the combination with a reservoir having opposed inlet and outlet openings, of a projectile-barrel having coinmunication with the reservoir through the outlet-opening, a valve device interposed between'the inlet and outlet and closing both, and means for actuating the valve devicei 19. In an airgun, the combination with a reservoir having o posed inlet and outlet openings, of a yielding conduit located in the' reservoir and having one of said openings, a valve device interposed between the inlet and outlet openings and closing both, and means for actuating the valve device. I

20. In an air-gun, the combination with a reservoir, of a projectile-barrel, said-reservoir having an outlet opening into thc barrel, a yielding inlet-conduit stem located inthe reservoir and having an opening opposed to said outlet, a valve interposed between the opening and outlet and closing both, and means for actuating the valve.

21. In an air-gun, the combination'with' a projectile-barrel, of `a `cylinder located: .beneath the same, a partition dividing said cylinder in'tda; pump-barrelanda reservoir, an outlet-'nipple located in'tliereservoir and communicating with the proj ectile-barrel, a conduit-stem yieldingly supported in the reservoir, said stein communicating with the pump-barrel and having an opening opposed to the nipple, a valve-seat surrounding said opening, a ball-valve located in the seat and c osing the opening and the nipple, a plunger operatively mounted in the pump-barrel, a vvalve-stem coacting with the valve, and means for actuating the valve-stem.

22. In an air-gun, the combination 'with a rojectile-barrel, of an air-reservoir located iieneath the same and having communication therewith, a valve for closing the communication, an upstanding valve-stem projecting above the barrel, and a trigger extending in rear of the barrel and having a forwardly-oliset portion located over the barrel and stem and engaging said stein to depress the same when the trigger is operated.

23. In an air-gun, the combination with a reservoir having opposed inlet and outlet openings.I of a projectile-barrel having coinoutlet-opening, a Valve device interposed between th"vv inlet and outlet openings and closing both means for actuating said valve device, an'ci a detachable end closure for said reservoir permitting access to the valve..

24. In an air-gun, the combination with a proj ectile-barrel,of a cylinder located alongsideV the saine, a partition dividing said cylinder into a pump-barrel and a reservoir, said reservoir having an inlet communicating with the pump-barrel and an outlet communicating with the projectile-barrel and opposed to the inlet, a valve located between and controlling both the outlet and inlet, a pumpplunger movably located in the pump-barrel, afyielding plug located in the end of the cylinder and constituting a closure for the reservoir, and a cap covering the said plug.

25. In an air-gun, the combination with a lng therewith and having anopening, a closure for said opening detachably mounted in the reservoir, and means for controlling the passage of motive fluid from the reservoir to the barrel, said means including a trigger mounted on the sa id Iclosure.

26. In an air-gun, the combination with a projectile-barrel, of a reservoir, a cylinder having communication therewith and having IOO ISO

an open end, a cap threaded upon and closing' barrel, a cap threaded upon the rear end of said end, and means foroontrolling the pasthe cylinder and' having rearwardly-extend- 15 sage of motive iuid from-*the reservoir to 4the ing ears, a trigger pivoted to and between the barrel, said means including a trigger ,pivoted ears, and 'a stem interposed between the on said closure. 'valve and the tri ger.

27. In an lair-gun, the combination with a In testimony t at I claim the foregoing as barrel,` of a eyhnder located alongside the my own I have hereto aHiXed my signature in- 2o same and having an open rear end, a partithe presence of two Witnesses.k tion in ythe cylinder dividing the same into a WALTER R BENJAMIN` rear reservoir and a front pump-chamber, a plunger operating in the chamber, a Valve Witnesses:

- controlling the introduction of a motive iuid G. E. VVHITTEN, l to the reservoir and from the reservoir to the l LOVE E. ERWIN. 

